Siting The Windcharger; General Considerations - Rutland 914i Manual De Instrucciones

Rutland 914i Windcharger Installation & Operation

Siting The Windcharger

General Considerations

The location and height of the mounting pole or tower for your wind turbine will be the
major factor in the overall performance of your system. The smooth flow of wind
over land and water is often interrupted by a multitude of
obstructions causing wind sheer and turbulence.
Wind shear describes the interference between the fast moving upper air and the
slow moving air close to the ground and the resulting decrease in average wind
speed as one gets closer to the ground.
Turbulence is caused by the wind passing over obstructions such as moored boats,
trees, and buildings.
Both wind sheer and turbulence diminish with height and can be overcome simply by
putting the turbine sufficiently high above them as shown in Fig 4a. Wind speed
decreases and turbulence increases where obstructions exist. Consider also that
downwind obstructions can be as detrimental to performance as upwind obstructions.
It is therefore essential that the wind generator should be located in an area as free
as possible from disturbed wind flow.
Fig. 4a
AREA OF TURBULENCE
WIND DIRECTION
2H
H
2H 20H
Doc No:SM-137 Iss. E 11.03.19 13 Marlec Eng Co Ltd